20172110167160 has 128 divisors (see below), whose sum is σ = 53279518763520. Its totient is φ = 6728413588992.

The previous prime is 20172110167147. The next prime is 20172110167327. The reversal of 20172110167160 is 6176101127102.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 20172110167160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88598987 + ... + 88826373.

It is an arithmetic number, because the mean of its divisors is an integer number (416246240340).

Almost surely, 2^{20172110167160} is an apocalyptic number.

20172110167160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20172110167160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26639759381760).

20172110167160 is an abundant number, since it is smaller than the sum of its proper divisors (33107408596360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20172110167160 is a wasteful number, since it uses less digits than its factorization.

20172110167160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236005 (or 236001 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The spelling of 20172110167160 in words is "twenty trillion, one hundred seventy-two billion, one hundred ten million, one hundred sixty-seven thousand, one hundred sixty".